CVE-2026-82183 OAuth Single Sign On 6.25.0 - 7.0.0 - Unauthenticated Account Takeover via Unverified Steam OpenID Assertion

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

CVE-2026-82183: Improper Authentication

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

PT-2026-84641

The OAuth Single Sign On WordPress plugin before 7.0.1 does not verify the identity assertion returned by its Steam single sign-on flow, allowing unauthenticated attackers to log in as an arbitrary non-administrator user, and to create new accounts...

CVE-2026-19874

A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers using the lobby data key "kicknum" to determine the number of...

CVE-2026-19874

A heap-based buffer overflow exists in Konami's Metal Gear Online 3 (specifically version 1.1.2.8 , Steam AppID 287700) due to improper validation of lobby data. The software fails to check if the kick_num field exceeds the capacity of the fixed-length buffer used to store kicked player IDs. An a...

EUVD-2026-64916

A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers using the lobby data key "kicknum" to determine the number of...

CVE-2026-19874 Konami's Metal Gear Online 3 contains a heap-based buffer overflow

A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers using the lobby data key "kicknum" to determine the number of...

CVE-2026-19874 Konami's Metal Gear Online 3 contains a heap-based buffer overflow

A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers using the lobby data key "kicknum" to determine the number of...

Konami's Metal Gear Online 3 contains a heap-based buffer overflow

Overview Konami's Metal Gear Online 3 video game contains a heap-based buffer overflow that can be triggered by an input‑validation vulnerability that allows match hosts to remotely execute arbitrary code on lobby members' machines through specially crafted data. Description Metal Gear Online 3 i...

PT-2026-80897

A heap-based buffer overflow vulnerability exists in Konami's Metal Gear Online 3, originating from improper validation of lobby data fields related to kicked players. The affected function processes a list of kicked player identifiers using the lobby data key "kick num" to determine the number o...

Valve warns Steam hardware buyers: Expect fake delivery scams

Most of us are wise to phishing emails that don't contain much personal information. Generic "your account is suspended" messages usually get binned on sight. But what about the phishing emails that use your real name and address, and reference the specific product you bought last month? Even for...

FBI Arrests Florida Man in $220,000 Steam Crypto Theft Case

FBI agents arrested a Florida man accused of spreading Steam game malware that stole $220,000 in crypto, including $32,000 from a terminally ill cancer patient...

Siggen Backdoor Hits Windows Developers Via Infected Visual Studio Projects

Dr.Web details Siggen Windows backdoor that uses Steam for C2, steals credentials and crypto data and infects Visual Studio projects to spread among developers...

Dozens of malicious wallpapers found on Steam Workshop: gamers’ accounts at risk

Since late 2025, malware has been spreading rapidly through the Steam Workshop, the gaming platform's built-in service for players to create and share custom content. The attackers are primarily targeting gamers in China and Russia, aiming to hijack their accounts. To pull this off, they are...

A week in security (June 8 – June 14)

Last week on Malwarebytes Labs: Stolen iPhones could soon be worth a lot less to thieves Fake verification pages are stealing Steam accounts from players Google can be liable for false AI Overviews, court rules VRChat says reported data breach never happened Children’s phones must block nude imag...

Fake verification pages are stealing Steam accounts from players

Online gamers should watch out for a convincing scam that aims to steal your Steam account. The scam uses fake FACEIT verification pages that look legitimate, complete with official branding, working links, and what appears to be a real Steam login window. By the time it asks for your password,...

INTERPOL Operation Takes Down Sniper Dz Phishing Platform, Arrests Administrator

An INTERPOL-led operation last month resulted in the disruption of Sniper Dz , a decade-long phishing-as-a-service PhaaS platform, Group-IB said Thursday. The effort, codenamed Operation Ramz, took place between October 2025 and February 2026, and saw authorities from 13 countries in the Middle...

New WordPress Malware Uses Steam Profile Comments to Hide C2 Instructions

GoDaddy researchers found WordPress malware using Steam Community profile comments to hide encoded command and control data, with nearly 1,980 sites affected...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Added support for Van Gogh SoC. The ROG Xbox Ally non-X SoC features an architecture similar to the Steam Deck. While the Steam Deck supports S3 mode s2idle causes a crash, this feature was removed from the...

CVE-2026-5128

A sensitive information exposure vulnerability exists in ArthurFiorette steam-trader 2.1.1. An unauthenticated attacker can send a request to the /users API endpoint to retrieve highly sensitive Steam account data, including the account username, password, identity secret, and shared secret. In...